Very rare. Arjun is an interesting player for the audience since he is always willing to take great risks in order to play for a win. He surely has a lot of analysis here. Both 10.Qd6 and 10.Nf4 are critical.
7. d2b4  7... d4e4  8. g1e2  8... b8a6  9. b4f8 A pretty move that is well-known.